Uninterruptible power supply (UPS) is online, double-conversion type in 3 kVA and 5 kVA sizes that offer accurate, high-frequency IGBT digitized power. UPS offers a battery-management system that automatically determines charge and discharge rates, maximizing run times and battery life.
Refrigerant level sensors detect the presence of refrigerants at a specific point in refrigerant vessels, intercoolers and packaged chillers. Previously available only for ammonia, the single-point sensors and switches have now been developed for R-22, R-134a, R-404A and R-507.
As the owner of Printing Concepts, a commercial print shop in Stow, Ohio, Ron Taggart has seen a lot of changes in his industry—particularly a greater dependence on computers and telecommunications equipment. When Taggart decided to build a new 24,000-square-foot facility for his operation, one of his top priorities was making the facility flexible for new technology and future growth.
For high-tech, mission-critical companies like Townsend Analytics Ltd. of Chicago, a specialist in computer applications for Web-based finance, the ideal office is one where integrated building systems produce the right environment both for equipment and personnel. For its 11,000 square feet of space on the 19th floor of Chicago's 100 South Wacker building, the company was looking to integrate...
Magnetic-drive pumps are specifically designed to handle difficult fluids such as corrosives, pollutants, ultrapure liquids and toxics. This seamless pump can handle flows up to 1,500 gpm at 2,900 rpm and 1,760 gpm at 3,500 rpm. (Model ICM by Goulds Pumps) Circle 1 Structured cabling system doubles the bandwidth of the proposed category-6 standard, tested to perform at up to 400 MHz.
The results are in. Commercial building owners in the United States could save between $2.7 and $3.6 billion dollars per year by simply cleaning fixtures on a regular basis, according to a federally-funded four-year building-lighting study conducted by the InterNational Association of Lighting Management Companies (NALMCO), Des Moines, Iowa.
When the owners of ING Investment Products Group decided to build a new headquarters in West Chester, Pa., cabling infrastructure was a big concern. Recognizing the fast pace of technological developments and how difficult it is to avoid rapid obsolescence, they wanted a voice and data infrastructure that gave them not only reliable performance, but also longevity.
Controlling humidity in commercial buildings used to be a difficult undertaking that was best accomplished by overcooling the supply air to increase moisture removal, then reheating the overcooled air to the desired temperature. This was a huge waste of energy. While gas desiccant systems were a viable alternative, they were relatively costly and more often used for industrial applications where very low humidity levels were required.
Chicago is the birthplace of the high-rise building and has been a world leader in building safety after the great Chicago fire in 1871. We applaud Mayor Daley, the City Council and the High Rise Building Safety Committee chaired by Alderman Bernard Stone for facilitating public discussion about fire and life safety in Chicago’s buildings. During recent testimony at the City Council, we were saddened to hear from senior citizens as well as building owners and managers that might have to move elsewhere or shutter buildings due to the expense of the high-rise building sprinkler mandate. We, like this committee, believe Chicagoans should be protected from fire and smoke in buildings. However, we need to keep the economics of living and employing in Chicago affordable.
HVAC experts should know something about radiation and it’s control for a variety of reasons. First, planning and designing effluent systems for laboratories and other industrial facilities requires some knowledge of this hazard and how it is used. Secondly, maintenance and repair of these systems will require some near contact with potentially contaminated components such as fume hoods, blowers, flow dampers and ductwork.